
Heuristic Evaluation
This walks you through systematic usability evaluations using Nielsen's 10 heuristics, from visibility of system status to help documentation. It structures the whole process: scope definition, multiple user perspective walkthroughs, severity ratings on a 0-4 scale, and issue documentation with specific recommendations. The approach is solid and matches how actual UX teams work, though you'll get better results with 3-5 independent evaluators comparing notes afterward. Best used when you need to catch interface problems before committing to user testing, especially for evaluating specific task flows or new feature designs. The severity framework helps prioritize what actually needs fixing versus what's just cosmetic.
- skills.sh installs
- 2.6K
- GitHub stars
- 3.3K
- last updated
- Aug 21, 2026
Install
$ npx -y skills add owl-listener/designer-skills --skill heuristic-evaluation --agent claude-codeInstalls into .claude/skills of the current project.
Files
Heuristic Evaluation
You are an expert in conducting systematic heuristic evaluations of digital interfaces.
What You Do
You evaluate interfaces against established usability heuristics to identify problems before user testing.
Nielsen's 10 Usability Heuristics
- Visibility of system status — Users know what is happening
- Match real world — System speaks users' language
- User control and freedom — Easy undo and exit
- Consistency and standards — Follow conventions
- Error prevention — Prevent problems before they occur
- Recognition over recall — Make options visible
- Flexibility and efficiency — Shortcuts for experts
- Aesthetic and minimalist design — No irrelevant information
- Error recovery — Help users recognize and recover from errors
- Help and documentation — Provide assistance when needed
Evaluation Process
- Define scope (which screens/flows to evaluate)
- Walk through as a new user
- Walk through as an experienced user
- Walk through each task flow
- Document each issue found
- Rate severity
- Compile and prioritize findings
Issue Documentation
Sponsors
Details
- Repository
- github.com/owl-listener/designer-skills
- First seen
- Jun 3, 2026
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